Ethylene-acrylic ester rubber product and preparation method thereof

A technology for ethylene acrylate and rubber products, which is applied in the field of ethylene acrylate rubber products and their preparation, can solve problems such as high temperature resistance and oil resistance performance of ethylene acrylate rubber, and achieves a wide service temperature range and good scorch safety. Sexual, high-intensity effects

Active Publication Date: 2017-06-06
ANHUI ZHONGDING SEALING PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned documents do not involve the improvement of the strength, high temperature resistance and engine oil resistance of ethylene acrylate rubber

Method used

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  • Ethylene-acrylic ester rubber product and preparation method thereof
  • Ethylene-acrylic ester rubber product and preparation method thereof
  • Ethylene-acrylic ester rubber product and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] An ethylene acrylate rubber product, in parts by weight, comprising the following raw material components:

[0059]

[0060] The preparation method of above-mentioned ethylene acrylate rubber product comprises the steps:

[0061] (1) Add the raw material components of the formula amount into the internal mixer, and banbury at 70°C to obtain the mixed rubber;

[0062] (2) Add the mixed rubber into the open mill, and carry out open milling and molding at 60°C to obtain molded parts;

[0063] (3) Put the molded parts into the flat vulcanizing machine at a pressure of 190kgf / cm 2 , once vulcanized for 420s at a temperature of 170°C;

[0064] (4) Put the primary vulcanized rubber obtained in step (3) into an oven, and perform secondary vulcanization at 175° C. for 4 hours to obtain ethylene acrylate rubber products.

Embodiment 2

[0066] An ethylene acrylate rubber product, in parts by weight, comprising the following raw material components:

[0067]

[0068]

[0069] The preparation method of above-mentioned ethylene acrylate rubber product comprises the steps:

[0070] (1) Add the raw material components of the formula amount into the internal mixer, and banbury at 75° C. to obtain the mixed rubber;

[0071] (2) Add the rubber compound into the open mill, and carry out open mill molding at 70°C to obtain a molded part;

[0072] (3) Put the molded parts into the flat vulcanizing machine at a pressure of 170kgf / cm 2 , once vulcanized for 300s at a temperature of 180°C;

[0073] (4) Put the primary vulcanized rubber obtained in step (3) into an oven, and perform secondary vulcanization at 170° C. for 8 hours to obtain ethylene acrylate rubber products.

Embodiment 3

[0075] An ethylene acrylate rubber product, in parts by weight, comprising the following raw material components:

[0076]

[0077]

[0078] The preparation method of above-mentioned ethylene acrylate rubber product comprises the steps:

[0079] (1) Add the raw material components of the formula amount into the internal mixer, and banbury at 90° C. to obtain the mixed rubber;

[0080] (2) adding the mixed rubber into an open mill, and carrying out open kneading molding at 65° C. to obtain molded parts;

[0081] (3) Add the molded parts into the flat vulcanizer at a pressure of 175kgf / cm 2 , once vulcanized for 360s at a temperature of 178°C;

[0082] (4) Put the primary vulcanized rubber obtained in step (3) into an oven, and perform secondary vulcanization at 180° C. for 5 hours to obtain the ethylene acrylate rubber product.

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Abstract

The invention provides an ethylene-acrylic ester rubber product and a preparation method thereof. The ethylene-acrylic ester rubber product is prepared from the following components in parts by weight: 100 parts of ethylene-acrylic ester, 100 to 120 parts of medium particle thermal cracking carbon black, 10 to 15 parts of a plasticizer, 1 to 1.5 parts of stearic acid, 1.5 to 2 parts of a vulcanizing agent and 4 to 5 parts of a promoter, wherein the ethylene-acrylic ester consists of high-Mooney ethylene-acrylic ester and low-expansion ethylene-acrylic ester according to the mass ratio of (70 to 80):(20 to 30). The preparation method of the ethylene-acrylic ester rubber product comprises the following steps: mixing all the raw material components according to the formula amounts to obtain mixed rubber, and then carrying out open forming, primary vulcanization and secondary vulcanization to obtain the ethylene-acrylic ester rubber product. The ethylene-acrylic ester rubber product provided by the invention is relatively high in strength, relatively wide in use temperature range and relatively high in high temperature resistance, compression deformation resistance and engine oil resistance.

Description

technical field [0001] The invention belongs to the technical field of composite rubber materials, and in particular relates to an ethylene acrylate rubber product and a preparation method thereof. Background technique [0002] Car engines need to use engine oil to lubricate their moving parts. In order to prevent oil leakage, rubber rings are generally used to seal the parts. Engines that use fuel have a higher service temperature and higher temperature resistance requirements for rubber rings. Generally, acrylate or fluororubber with higher temperature resistance is selected as the sealing material. Acrylate has a very large cost advantage, so it is more widely used in the sealing of engine oil. Ethylene acrylate has better high temperature resistance and processing performance than ordinary acrylate, and can replace ordinary acrylate rubber. [0003] The combustion temperature of the fuel in the turbocharged engine is much higher than that of the naturally aspirated eng...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08K13/02C08K3/04C08K5/09C08K5/18C08K5/17
Inventor 汪佑宏方炳虎许耀东徐晶晶丁业乾
Owner ANHUI ZHONGDING SEALING PARTS
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